MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ca275788292983ccf5bee843aac527281ccb353aa802dcd4cb02472de9c6ce33. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Formbook


Vendor detections: 14


Intelligence 14 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ca275788292983ccf5bee843aac527281ccb353aa802dcd4cb02472de9c6ce33
SHA3-384 hash: 7c0c654a25407674accf1b3c490803a5a67550d962d543e9de1cfd25cdbc6652aa0065358dc2841792172755292bef35
SHA1 hash: 7605a8ee3c3c7f9bb34ed5b60159ea70acfe1740
MD5 hash: c4c59462bed74e4b07d32dde82ef7e52
humanhash: louisiana-magnesium-lion-kilo
File name:Remittance Copy.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:782'336 bytes
First seen:2025-02-26 04:06:28 UTC
Last seen:2025-03-10 12:07:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:f383le9ciy9MjF0/0TQLjJDNVl4obOjJFst1cYjNpWiJtLNuSqiwkmafS/rBkUn3:P3oK0/0TQLjjJtWKLgiwk9fSzzRmfo
TLSH T1F6F4019C3608E813CA5552F84AA1F27617BD0D9DB901C2EB5FE9BDEB7CE5F101A10287
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
dhash icon d4cc86d4f29ec4d4 (9 x Formbook, 4 x MassLogger, 3 x Loki)
Reporter threatcat_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
4
# of downloads :
480
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Remittance Copy.exe
Verdict:
No threats detected
Analysis date:
2025-02-26 04:09:01 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/049fec57-9774-4380-b1bf-49efc249de8b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.13930.5059.UNOFFICIAL
Create hunting rule

Verdict:
Clean
Score:
89.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67be93c328ab76d43a5d2e7d
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/67be936c60f4b4f0724c921b/reports/56fe636c-7f60-460a-a597-ec93062aa6e5/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/ca275788292983ccf5bee843aac527281ccb353aa802dcd4cb02472de9c6ce33
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f51b82c8-6b99-4927-a084-49e314aa6d6d
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1624270
Signature
.NET source code contains potential unpacker
Found direct / indirect Syscall (likely to bypass EDR)
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1624270 Sample: Remittance Copy.exe Startdate: 26/02/2025 Architecture: WINDOWS Score: 100 33 www.031235045.xyz 2->33 35 www.seekmeme.xyz 2->35 37 19 other IPs or domains 2->37 45 Suricata IDS alerts for network traffic 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 Yara detected FormBook 2->49 53 3 other signatures 2->53 10 Remittance Copy.exe 3 2->10         started        signatures3 51 Performs DNS queries to domains with low reputation 35->51 process4 file5 31 C:\Users\user\...\Remittance Copy.exe.log, ASCII 10->31 dropped 67 Injects a PE file into a foreign processes 10->67 14 Remittance Copy.exe 10->14         started        17 Remittance Copy.exe 10->17         started        signatures6 process7 signatures8 69 Maps a DLL or memory area into another process 14->69 19 ZIu813lV.exe 14->19 injected process9 signatures10 55 Found direct / indirect Syscall (likely to bypass EDR) 19->55 22 relog.exe 13 19->22         started        process11 signatures12 57 Tries to steal Mail credentials (via file / registry access) 22->57 59 Tries to harvest and steal browser information (history, passwords, etc) 22->59 61 Modifies the context of a thread in another process (thread injection) 22->61 63 3 other signatures 22->63 25 ZIu813lV.exe 22->25 injected 29 firefox.exe 22->29         started        process13 dnsIp14 39 primepath.net 23.29.115.2, 60953, 60954, 60955 INCERO-HVVCUS United States 25->39 41 031235045.xyz 144.76.229.203, 60969, 60970, 60971 HETZNER-ASDE Germany 25->41 43 9 other IPs or domains 25->43 65 Found direct / indirect Syscall (likely to bypass EDR) 25->65 signatures15
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ca275788292983ccf5bee843aac527281ccb353aa802dcd4cb02472de9c6ce33
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ca275788292983ccf5bee843aac527281ccb353aa802dcd4cb02472de9c6ce33/
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-02-26 01:51:41 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zitvpcbjfgb4z5n65bb2vrjhfaomwnj2vabnzvglajds32ogzyzq._file
Verdict:
malicious
Label(s):
unknown_loader_037
Create hunting rule
formbook
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Link:
https://tria.ge/reports/250226-epp2haxps5/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/de842352-eb07-4c5b-b156-6902c759e434
Unpacked files
SH256 hash:
05a6d5f4726b3729f5958424a01d9a2033857c4381baee62a004a1241fb70cd1
MD5 hash:
eaf07392f2fad2e065b9e7f2399e5b72
SHA1 hash:
7a969669c8e2e0485d2840a3c89d98179ec4f9e5
Link:
https://www.unpac.me/results/fd668aa4-99d0-4fa7-b7f9-61d33caaa226/
SH256 hash:
c1e77c146c578a56b952d81187c116249a746c022a96a1afe14ffeb093ab6292
MD5 hash:
a63a382c33beedb1b17d68065dda4279
SHA1 hash:
9dd8140a3d2e182c0816bc056903f0f7332ccbf6
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/fd668aa4-99d0-4fa7-b7f9-61d33caaa226/
SH256 hash:
2a110a936d9d8d833066ae4a13cc6b6a6f136db8b385d76b29d8d7cafdab1449
MD5 hash:
23d9a31d9dae9b93499e95d6cbea948a
SHA1 hash:
ac2f2eae497bc23a523fcfc8a8faa8c225834872
Link:
https://www.unpac.me/results/fd668aa4-99d0-4fa7-b7f9-61d33caaa226/
SH256 hash:
53b4ef7758d4bbe0e69a94e576218bf6b139041e73faab615109410ad40aabab
MD5 hash:
a1951fdf9d53f7607972b04b2c036b53
SHA1 hash:
7296e583ccec4f3a0d2c46cda6ce03386fbbe325
Link:
https://www.unpac.me/results/fd668aa4-99d0-4fa7-b7f9-61d33caaa226/
SH256 hash:
ca275788292983ccf5bee843aac527281ccb353aa802dcd4cb02472de9c6ce33
MD5 hash:
c4c59462bed74e4b07d32dde82ef7e52
SHA1 hash:
7605a8ee3c3c7f9bb34ed5b60159ea70acfe1740
Link:
https://www.unpac.me/results/fd668aa4-99d0-4fa7-b7f9-61d33caaa226/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ca2757882929/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/ca275788292983ccf5bee843aac527281ccb353aa802dcd4cb02472de9c6ce33

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe ca275788292983ccf5bee843aac527281ccb353aa802dcd4cb02472de9c6ce33

(this sample)

  
Delivery method
Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments